Hand punch



D. F. SCHUMACHER HAND PUNCH Filed May 10, 1928 z .m M n a I- I III II.Jan. 5, 1932.

FIG. I.

IIIIIIIII'IIII F 1% mmmmmm 2 w0omoom omwowm Mmmwmm wmmmw mmmmmm 000000mmwww? h wwmmwm w M00000 Patented Jan. 5, 1932 UNITED STATES PATENTOFFICE DIEDRICH FRIEDRICH SCHUMACHER, OF BERLIN, GERMANY, ASSIGNOR TOTHE TABU- LATING MACHINE COMPANY, OF ENDICOTT, NEW YORK, A CORPORATIONOF NEW JERSIH' HAND Application filed May 10, 1928, Serial No.

This invention relates to punching devices for perforating record cards.Information is recorded on said cards by index points,

' usually in the form of perforations. The

' meaning of an index point is determined by its location on the card inaccordance with a predetermined scheme. Thus, the wellknown Hollerithcard has a plurality of parallel columns, each of which contains atleast ten index point positions for recording digits 0 9 and frequentlytwo additional positions above the 0 position for recording numbers 11and 12 or other desired items.

It is an object of this invention to provide a manually operativepunching device for conveniently perforating record cards.

It is a further object of the invention to provide a simple indicatingmeans to locate the record card in desired punching positIlOIl.

7 Still another object is to provide a card feeding device which may beretained in selected positions relative to the punch and readilyadjusted to said positions.

Various other objects and advantages of my invention will be obviousfrom the following particular description of one form of mechanismembodying the invention or from an inspection of the accompanyingdrawings; and the invention also constitutes certain new and novelfeatures of construction and combination of parts hereinafter set forthand claimed.

Fig.1 is a plan view of the device.

Fig. 2 is a side section thereof.

Fig. 3 is an end view thereof and Fig. 4c is an end view of the cardholder.

In detail, the device includes a base 10 having a plate 11 provided withholes 12. The latter are arranged in columns parallel to the end of thebase, adjacent columns being a distance apart equal to that betweenadjacent card columns. Adjacent holes in a column are spaced apart adistance equal to that between successive index point positions in acard column; The purpose of holes 12 will be hereinafter fullyexplained.

At its forward end, the base rigidly carries on its surface a die block13 having a die opening 14. Above the die block, the base PUNCH 276,643,and in Germany January 30, 1928.

has fixed thereto a substantially triangular frame 15 carrying a punch16. Alinedopen- 1ngs in said structure guide the punch into cooperationwith die opening 14. The punch 1s normally held in uppermost position bya spring 17 and is provided with a knob handle 18 for depressing itagainst the force of the spring. A pin 19 on the frame abuts a shoulder20 on the punch stem to limit the upward movement of the punch. Thebottom of the frame 15 is spaced from the top of die block 13 so that acard or sheet may be fed between the frame and the die block to beoperated on by punch 16. For perforating record cards, it is desirableto provide means-for quickly and conveniently locating the card relativeto the punch in order to perforate the selected index point positions.For this purpose a card holding frame 21 is provided.

The card holding frame comprises a base 22 on which the card is adaptedto rest and a cover plate 23 having a handle 24 formed therewith. Theforward end of the base is open to permit. the card to be insertedbetween the base and the cover plate. The sides of the base extend abovethe surface thereof to abut the longitudinal edges of the card and holdthe card against movement laterally of the frame. The rear end of thebase also projects above the surface thereof to abut the end of the cardand limit its movement longitudinally of the frame. One side of theframe is provided with graduations 25 cooperating with an indicatingline 26 on the die plate 11 to show which column of the card held by thecard frame is in line with the punch. The lower punch guiding plate offrame 15 carries a pointer 27 which cooperates with the card to indicatewhich index point position on the card is under the punch. At each side,adjacent its forward end, base plate 22 of the card holder carries a pin28 which is adapted to enter any of the holes 12 in plate 11.Graduations 25 in cooperation with indicating line 26 indicate whichcard column is in line with the punch when the pins 28 are inserted in apair of holes 12 in the same column of holes. Thus in the example shown,the punch is in readiness to perforate column 6 of the card.

rate an index In order that the punch perforate the desired index pointposition injthe column, the card holder is first lifted out ofcooperation with platell and then moved along the column of holes 12corresponding to the card column to be punched as indicated bygraduations 25 and line 26 until the pointer 27 is o posite the desiredindex point position. T he pins 28 are then permitted to drop into thepair of,holes determimng said index point position. The card is therebyheld firmly for punch 16 to perforate the selected index point position.

While I have shown and described and pointed out the fundamental novelfeatures of the invention as applied to a single modification it will beunderstood that various omissions and substitutions and changes in theform and details of the device illustrated and in its operation-may bemade by those skilled in the art without departing from the spirit ofthe invention. I inten to be limited therefore only as indicated by thescope of the following claims:

1. A punching device comprising a punch, a punch carrier, said carrierhaving a plurality of apertures therein, a card holder, and pins on saidholder spaced apart and alined parallel to a column of the card in theholder entering said apertures to align and position the holder relativeto the punch. I

2. A punching mechanism comprising a punch, a frame carrying said punch,a base on which said frame is fixed, means directly in contact with thebase for holding the wor in position foran operation by said punch, saidholding means being freely movable away from the surface of said base,and means on said base preventing movement of the holding means parallelto the surface of the base only when resting on the base.

3. A device for perforating a record card having a plurality of columnsof index point positions which may be perforated to designate items,comprising a frame, a manual punch carried by said frame, a record cardholder movable on a surface of said frame in a plurality of directions,and retaining means on said surface adapted to retain the holder in anyposition in which the punch can perfooint position of the record card inthe hol er.

4. A device such as described in claim 3, and indicating means on saidframe surface for indicating the position of the card rela-' tive to thepunch.

5. A device such as described in claim 3, a portion of saidretaining-means being located underneath the record card in the holder.

6. A device such as described in claim 3,

' said holder having a plurality of spaced elements alined in adirection parallel to a card column of the card in the holder, saidelements cooperating with said retaining means in restraining movementof the holder;

cludmg upper and lower guiding portions for the punch rigid with thetemplet plate, said portions being spaced to form an aperture ust wideenough to permit the card to pass 'therethrough and thereby tosubstantially re strain the portion of the card in the aperture againstmovement transversely to the temp-let plate, and means for retairiingthe card in aclljpstably selected position on the templet p a e.

8. A punching device comprising a punch and a card holder for moving thecard relative to the punch, said card holder comprising a. frame withinwhich the card is restrained against edgewise movement and a plate rigidwith said frame for preventing movement of the portion of the cardunderneath said plate transversely of the card surface, said plate beingprovided with a handle portion for manipulating the card holder.

9. A punching device comprising a base on which the card rests, a punchcarried by the base for perforating the card, and a card holder formoving the card relative to the punch, said card holder having threesides engaging two side edges and the rear edge of a card and open atthe side facing the punch, and a handle provided on said frame formanipulating the card holder.

In testimony whereof I hereto aflix my signature.

DIEDRICH FRIEDRICH SCHUMACHER. V

